View Compilation Error

0_0_29144580_27569.cpp:2:1: error: 'll' does not name a type
 ll in[N], Hash[N], vis[N], pre[N];
 ^
0_0_29144580_27569.cpp:4:2: error: 'll' does not name a type
  ll x, y, z;
  ^
0_0_29144580_27569.cpp:7:2: error: 'll' does not name a type
  ll u, v, cost;
  ^
0_0_29144580_27569.cpp:9:1: error: 'll' does not name a type
 ll calDist(node a, node b){//计算距离 
 ^
0_0_29144580_27569.cpp:13:1: error: 'll' does not name a type
 ll ZL_MST(ll root, ll nv, ll ne){//root->根结点，nv->点个数，ne->边条数 
 ^